Question

[Nguyễn Bùi Bảo Quyên]

55/8 < x < 7 1/9

Answer 1

[Nguyễn Trần Thành Đạt]

55/8= 6 7/8

ta có: 7 1/9

=>x=7

Answer 2

[Nguyễn Văn Huy]

Ta có \(:\)   \(\frac{55}{8}=\frac{55\times9}{8\times9}=\frac{495}{72}\)\(^{\left(1\right)}\)  

                    \(\frac{71}{9}=\frac{71\times8}{9\times8}=\frac{568}{72}\)\(^{\left(2\right)}\)

Từ \(\left(1\right)\)và   \(\left(2\right)\)\(\Rightarrow\frac{495}{72}< x< \frac{568}{72}\)

                                   \(\Rightarrow x=\frac{496}{72},\frac{497}{72},\frac{498}{72},...,\frac{567}{72}\)

            Vậy      \(x=\frac{496}{72},\frac{497}{72},\frac{498}{72},...,\frac{567}{72}\)